Yii测试。截断外键

Question

在每次测试开始时截断数据库的最佳解决方案是什么？我有带有Foreigh键的InnoDB引擎，无法截断表。

Answer 1

If you extend CDbTestCase and use the built in public $fixtures property to specify your fixture files, it will handle this automatically.

However, if you built your own fixture generating system, or otherwise want to truncate a table, you can use the following.

$this->getFixtureManager()->checkIntegrity(false);
$this->getFixtureManager()->truncateTable('table_name');
$this->getFixtureManager()->checkIntegrity(false);

This again assumes you are extends CDbTestCase for your unit test files. If you are not, then you can directly remove the integrity checks like so:

Yii::app()->db->createCommand('set foreign_key_checks=0')->execute();
//do whatever, including truncating
Yii::app()->db->createCommand('set foreign_key_checks=1')->execute();

That will also temporarily disable the foreign key checks.

Answer 2

只是为Yii2添加一个参考 （因为没有容易找到的例子）：

$this->db->createCommand()->checkIntegrity(false)->execute();
$this->truncateTable('table_name');
$this->db->createCommand()->checkIntegrity(true)->execute();

Answer 3

Yii 可以截断：

Yii::app()->db->createCommand('TRUNCATE tbl_name')->execute();